Card No: 2653       Created: 19/06/1996    Last edition: 13/01/2009

Name: LUDLOCKITE
Specification: [1]
Formula: PbFe4As10O22
Symmetry Class: triclinic
Space Group: A 1(-)
Unit Cell
Parameters:
a = 10.4260 | b = 12.0740 | c = 18.3490 | alpha = 101.8400 | beta = 100.2100 | gamma = 90.6000
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 2222.26
Number of Atomic Position
per full Unit Cell
:
P/U = 148 Molar Volume, cm3/mol: Vm = 334.64
Number of Reflexes used in
Structure Determination
:

NR = 3858
X-ray density, g/cm3: p = 4.58
R-factor: R = 0.0470MU, 1/cm: µ = 547.287
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 119.576
Theta-Interval for CPDP: T/I = 1-45